CA2640947A1 - Sequential casting metals having high co-efficients of contraction - Google Patents

Sequential casting metals having high co-efficients of contraction Download PDF

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Publication number
CA2640947A1
CA2640947A1 CA002640947A CA2640947A CA2640947A1 CA 2640947 A1 CA2640947 A1 CA 2640947A1 CA 002640947 A CA002640947 A CA 002640947A CA 2640947 A CA2640947 A CA 2640947A CA 2640947 A1 CA2640947 A1 CA 2640947A1
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CA
Canada
Prior art keywords
metal
divider wall
outer layer
angle
mold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002640947A
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French (fr)
Other versions
CA2640947C (en
Inventor
Robert Bruce Wagstaff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novelis Inc Canada
Original Assignee
Novelis Inc.
Robert Bruce Wagstaff
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Novelis Inc., Robert Bruce Wagstaff filed Critical Novelis Inc.
Publication of CA2640947A1 publication Critical patent/CA2640947A1/en
Application granted granted Critical
Publication of CA2640947C publication Critical patent/CA2640947C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/02—Casting compound ingots of two or more different metals in the molten state, i.e. integrally cast
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/007—Continuous casting of metals, i.e. casting in indefinite lengths of composite ingots, i.e. two or more molten metals of different compositions being used to integrally cast the ingots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
    • B22D15/04—Machines or apparatus for chill casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
    • B22D21/04—Casting aluminium or magnesium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/12—Appurtenances, e.g. for sintering, for preventing splashing

Abstract

A method and apparatus for casting metals in a DC mold to form an ingot having at least two layers formed by sequential solidification. The apparatus has at least one cooled divider wall at the entry end portion of the mold to divide the entry end portion into at least two feed chambers. Metal is fed to the chambers to form an inner layer and at least one outer layer. The divider wall has a metal-contacting surface for contacting the metal for the at least one outer layer, the surface being arranged at an angle to the vertical sloping away from the metal for the outer layer in a downward direction. The angle increases at positions on the divider wall spaced from a central section of the wall approaching each longitudinal end thereof. The apparatus is suitable for casting a metal having a high coefficient of contraction as an inner layer or core ingot.

Claims (14)

1. Apparatus for casting a composite metal ingot, comprising:
an open-ended generally rectangular mold cavity having an entry end portion, a discharge end opening, and a movable bottom block adapted to fit within the discharge end and to move axially of the mold during casting;
at least one cooled divider wall at the entry end portion of the mold and terminating above said discharge end opening to divide the entry end portion into at least two feed chambers; and means for feeding metal for an inner layer to one of said at least two feed chambers and at least one means for feeding another metal for at least one outer layer to at least one other of said feed chambers;
wherein said at least one divider wall has a metal-contacting surface for contacting said metal for said at least one outer layer, said surface being arranged at an angle to the vertical sloping away from said metal for said outer layer in a downward direction, and said angle increasing at positions on said at least one divider wall approaching each longitudinal end thereof.
2. The apparatus of claim 1, wherein said at least one means for feeding said another metal for said at least one outer layer is positioned to introduce said metal for said outer layer into said mold at a position in said mold higher than said means for feeding said metal for said inner layer.
3. The apparatus of claim 1, wherein said angle of said at least one divider wall at said longitudinal ends is at least double said angle at a center thereof.
4. The apparatus of claim 1, wherein said angle of said at least one divider wall is at least 3° at said longitudinal ends and no more than 2° at a center thereof.
5. The apparatus of claim 1, wherein said angle of said at least one divider wall is in the range of 3 to 7° at said longitudinal ends and in the range of 1 to 2°
at a center thereof.
6. The apparatus of claim 1, wherein said divider wall has an elongated central section, and wherein said angle remains constant within said central region and then increases beyond said central region.
7. The apparatus of claim 1, including a supply of molten metal having a higher co-efficient of contraction than pure aluminum connected to said means for feeding metal for said inner layer.
8. The apparatus of claim 7, wherein said supply of molten metal is a supply of an aluminum-magnesium alloy containing at least 2.5 wt.% Mg.
9. The apparatus of claim 1, including a supply of molten metal connected to said means for feeding said at least another metal, said molten metal being a metal having a lower coefficient of contraction than said metal fed to said inner layer.
10. A method of casting a composite ingot, comprising the steps of:
providing an apparatus for casting a composite metal ingot, including an open-ended generally rectangular mold cavity having an entry end portion, a discharge end opening, a movable bottom block adapted to fit within the discharge end and to move axially of the mold during casting, and at least one cooled divider wall at the entry end portion of the mold and terminating above said discharge end opening to divide the entry end portion into at least two feed chambers for casting an inner layer and at least one outer layer, said at least one divider wall having a metal-contacting surface for contacting metal introduced for said at least one outer layer, said surface being arranged at an angle to the vertical sloping away from said metal for said outer layer in a downward direction, and said angle increasing at positions on said at least one divider wall spaced from a central section of said at least one divider wall to each longitudinal end thereof;
feeding metal for an inner layer to one of said at least two feed chambers;
feeding another metal for at least one outer layer to at least one other of said feed chambers; and moving said bottom block axially of said mold to allow an ingot to emerge from said discharge end opening of said apparatus.
11. The method of claim 10, wherein said metal for said inner layer is a metal having a higher coefficient of contraction than pure aluminum.
12. The method of claim 10, wherein said metal for said inner layer and said metal for said at least one outer layer have a significant difference in their respective coefficients of contraction.
13. The method of claim 10, wherein said another metal for said at least one outer layer is introduced into said mold at a position in said mold higher than a position chosen for introducing said metal for said inner layer.
14. In a method of casting an inner layer made of a metal and at least one metal cladding layer of another metal in a direct chill casting apparatus having at least one divider wall forming at least two chambers in said apparatus, wherein the metal for the inner layer has a higher coefficient of contraction than the metal of said at least one outer layer, the improvement which comprises angling said at least one divider wall at an angle to the vertical for contacting but sloping away in a downward direction from metal supplied for said at least one outer layer, and increasing said angle at positions spaced from a central section of said at least one divider wall to longitudinal ends thereof.
CA2640947A 2006-03-01 2007-02-28 Sequential casting metals having high co-efficients of contraction Active CA2640947C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US77791406P 2006-03-01 2006-03-01
US60/777,914 2006-03-01
PCT/CA2007/000309 WO2007098583A1 (en) 2006-03-01 2007-02-28 Sequential casting metals having high co-efficients of contraction

Publications (2)

Publication Number Publication Date
CA2640947A1 true CA2640947A1 (en) 2007-09-07
CA2640947C CA2640947C (en) 2011-09-20

Family

ID=38458609

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2640947A Active CA2640947C (en) 2006-03-01 2007-02-28 Sequential casting metals having high co-efficients of contraction

Country Status (13)

Country Link
US (1) US7748434B2 (en)
EP (1) EP2007535B1 (en)
JP (1) JP5111401B2 (en)
KR (1) KR101317977B1 (en)
CN (1) CN101394958B (en)
AU (1) AU2007219664B2 (en)
BR (1) BRPI0708261A2 (en)
CA (1) CA2640947C (en)
ES (1) ES2437863T3 (en)
NO (1) NO20084142L (en)
RU (1) RU2416485C2 (en)
WO (1) WO2007098583A1 (en)
ZA (1) ZA200807145B (en)

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CN101112715B (en) 2003-06-24 2010-06-23 诺维尔里斯公司 Composite lingot, Device and method for casting composite lingot
US7377304B2 (en) * 2005-07-12 2008-05-27 Alcoa Inc. Method of unidirectional solidification of castings and associated apparatus
US7617864B2 (en) * 2006-02-28 2009-11-17 Novelis Inc. Cladding ingot to prevent hot-tearing
US7762310B2 (en) * 2006-04-13 2010-07-27 Novelis Inc. Cladding superplastic alloys
RU2009133826A (en) * 2007-02-28 2011-04-10 Новелис Инк. (Ca) JOINT METAL CASTING WITH DIRECT COOLING
WO2009026671A1 (en) * 2007-08-29 2009-03-05 Novelis Inc. Sequential casting of metals having the same or similar co-efficients of contraction
US8448690B1 (en) 2008-05-21 2013-05-28 Alcoa Inc. Method for producing ingot with variable composition using planar solidification
AU2009276267B2 (en) 2008-07-31 2014-05-15 Novelis Inc. Sequential casting of metals having similar freezing ranges
US20100124668A1 (en) * 2008-11-14 2010-05-20 Alok Kumar Gupta Composite aluminum tread plate sheet
WO2010071981A1 (en) * 2008-12-23 2010-07-01 Novelis Inc. Clad can stock
US20100159266A1 (en) * 2008-12-23 2010-06-24 Karam Singh Kang Clad can body stock
EP2376281A4 (en) * 2008-12-23 2014-05-21 Novelis Inc Clad metal sheet and heat exchanger tubing etc. made therefrom
US20100227191A1 (en) * 2009-01-29 2010-09-09 Brown Mckay C Score line corrosion protection for container end walls
WO2010144997A1 (en) * 2009-06-16 2010-12-23 Novelis Inc. Sheet product having an outer surface optimized for anodization
US9249484B2 (en) 2010-09-08 2016-02-02 Alcoa Inc. 7XXX aluminum alloys, and methods for producing the same
JP2012086250A (en) * 2010-10-20 2012-05-10 Toyota Motor Corp Aluminum alloy clad plate and method of manufacturing the same
CN103502747B (en) 2010-12-22 2016-10-26 诺维尔里斯公司 Solar collector unit and comprise its solar energy equipment
CN103658571B (en) * 2012-09-04 2016-01-06 中国兵器科学研究院宁波分院 A kind of laminar composite semi-continuous casting crystallizer
US20170368596A1 (en) 2014-12-22 2017-12-28 Novelis Inc. Clad sheets for heat exchangers
WO2017066086A1 (en) 2015-10-15 2017-04-20 Novelis Inc. High-forming multi-layer aluminum alloy package
CN106180603A (en) * 2016-08-30 2016-12-07 中国重型机械研究院股份公司 Magnesium alloy slab casting crystallizer
CA3057585C (en) 2017-03-23 2023-01-03 Novelis Inc. Casting recycled aluminum scrap
WO2018183663A1 (en) 2017-03-30 2018-10-04 Novelis Inc. Surface roughening of polymer films
WO2018200355A1 (en) 2017-04-24 2018-11-01 Novelis Inc. Clad aluminum alloy products
CN107127312B (en) * 2017-06-07 2022-11-22 山东钢铁股份有限公司 Equipment and method for producing composite continuous casting billet
KR102597364B1 (en) 2017-08-21 2023-11-06 노벨리스 인크. Aluminum alloy products having selectively recrystallized microstructure and methods of making
MX2020003531A (en) 2017-10-23 2020-07-29 Novelis Inc Reactive quenching solutions and methods of use.
CN108526425B (en) * 2018-03-30 2020-09-01 鞍钢股份有限公司 Composite metal continuous casting device and continuous casting method
WO2020023367A1 (en) 2018-07-23 2020-01-30 Novelis Inc. Methods of making highly-formable aluminum alloys and aluminum alloy products thereof
CN109465410A (en) * 2018-12-21 2019-03-15 西南铝业（集团）有限责任公司 A kind of production technology of high zinc wrought aluminium alloy great circle ingot casting
BR112021013018A2 (en) 2019-02-13 2021-09-14 Novelis Inc. MOLTED METAL PRODUCTS WITH HIGH GRAIN CIRCULARITY
KR102578561B1 (en) 2019-03-13 2023-09-15 노벨리스 인크. Age-hardenable and highly formable aluminum alloys, monolithic sheets made therefrom and clad aluminum alloy products containing them
EP4093608A2 (en) 2020-01-21 2022-11-30 Novelis, Inc. Aluminium alloys, coated aluminium alloy product, clad aluminium alloy product with high corrosion resistance
CN115917042A (en) 2020-06-10 2023-04-04 诺维尔里斯公司 Aluminum alloy pretreatment with phosphorus-containing organic acids for surface modification
DE212021000471U1 (en) 2020-10-01 2023-06-05 Novelis Inc. Directly cooled, continuously cast aluminum ingot with a composition gradient to reduce cracking
WO2023039141A1 (en) 2021-09-09 2023-03-16 Novelis Inc. Aluminum alloy article having low roping and methods of making the same
CA3228948A1 (en) 2021-09-24 2023-03-30 Novelis Inc. Surface treatment of metal substrates simultaneous with solution heat treatment or continuous annealing
WO2023244770A1 (en) 2022-06-17 2023-12-21 Novelis Inc. Recycled aluminum alloys for use in current collectors in lithium-ion batteries
CN115319035B (en) * 2022-08-19 2023-10-31 眉山市博眉启明星铝业有限公司 Casting device for aluminum ingot continuous casting production line

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Also Published As

Publication number Publication date
KR20080104168A (en) 2008-12-01
EP2007535A4 (en) 2010-07-14
NO20084142L (en) 2008-11-26
WO2007098583A1 (en) 2007-09-07
US20070215313A1 (en) 2007-09-20
ZA200807145B (en) 2009-12-30
CN101394958B (en) 2011-12-21
CA2640947C (en) 2011-09-20
EP2007535A1 (en) 2008-12-31
RU2008138425A (en) 2010-04-10
AU2007219664B2 (en) 2011-03-17
US7748434B2 (en) 2010-07-06
JP2009528169A (en) 2009-08-06
JP5111401B2 (en) 2013-01-09
AU2007219664A1 (en) 2007-09-07
RU2416485C2 (en) 2011-04-20
BRPI0708261A2 (en) 2011-05-24
KR101317977B1 (en) 2013-10-14
CN101394958A (en) 2009-03-25
EP2007535B1 (en) 2013-09-04
ES2437863T3 (en) 2014-01-14

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